CVE-2026-42822Disclosure(microsoft / azure_local)

MEDIUMCVSS 10.0 · CRITICAL

Exploitation observed; activity peaked at 5 mentions and remains active

Immediate actions

Patch microsoft azure_local systems immediately
Assume compromise if assets are exposed

Recommended action window: Immediate (within 24h)

NVD description

Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges over a network.

microsoft CVEs Back to dashboard

4.0/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42822

Weakness type (CWE)

CWE-287

Priority

MEDIUM

Exploitation

ACTIVE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

azure_local
azure_resource_manager

Threat summary

Active exploitation appears in 1 classified signals
Patch or workaround signal is available
12 mentions across 3 observed days
Momentum state: stable

What's happening

Active exploitation reported across 1 signal
Patch or workaround mentioned in 5 signals
Technical details provided in 9 signals
Disclosure: 6 classified signals
Peaked 2d ago at 5 mentions (2026-05-18); latest day: 2
12 total mentions across 3 days

Affected systems

Vendors

microsoft

Products

azure_localazure_resource_manager

1 version affected across 2 products

Deep dive

Activity timeline12 mentions / 3d

Signal classification3 categories

Disclosure

650.0%

Patch

541.7%

Active Exploitation

18.3%

Referenced assets9 URLs

By indicator

Classification over time

Date	Total	Labels

2026-05-18	5	Disclosure2Patch3
2026-05-19	5	Active Exploitation1Disclosure2Patch2
2026-05-21	2	Disclosure2

Full discourse12 posts

moto_sato@58_158_177_102144d
Disclosure
Azure Local Disconnected Operations (ALDO) Elevation of Privilege Vulnerability Impact Elevation of Privilege Max Severity Critical Metrics CVSS:3.1 10.0 / 8.7 Exploitability assessment Exploitation More Likely https://msrc.microsoft.com/update-guide/ja-jp/vulnerability/CVE-2026-42822
Post summary
Microsoft announced a critical elevation‑of‑privilege vulnerability (CVE‑2026‑42822) in Azure Local Disconnected Operations, noting high CVSS scores and likelihood of exploitation, but it does not provide PoC, exploit code, or a patch.
020541.0K
9.6K followersView on X
Orizon@OrizonCyber145d
Patch
🚨 CVE-2026-42822 — CVSS 10/10 ██████████ Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges... Severity: CRITICAL Patch now. #cybersecurity #CVE https://t.co/RWOSdyQFLZ
Post summary
A critical Azure Local Disconnected Operations auth flaw (CVE‑2026‑42822) with a CVSS score of 10/10 is disclosed; a patch has already been issued and is recommended to be applied.
10020183
69 followersView on X
kawn@kawn2020143d
Disclosure
#securityupdate #microsoft #定例外 2026. 5.18 Azure Local 向けディスコネクテッドオペレーションサービスの特権昇格の脆弱性 CVE-2026-42822 Security Vulnerability リリース日: - マイクロソフト https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42822
Post summary
The post announces the discovery of a new privilege escalation vulnerability (CVE-2026-42822) affecting Azure Local disconnected operation services, with reference to Microsoft's advisory.
10100110
85 followersView on X
Israel@f1tym1145d
Disclosure
CVE-2026-42822 | Microsoft Azure Local/Azure Resource Manager improper authentication https://ift.tt/uO6pJHw A vulnerability categorized as critical has been discovered in Microsoft Azure Local and Azure Resource Manager. This affects an unknown part. Executing a manipulation …
Post summary
CVE‑2026‑42822 is a newly discovered critical vulnerability in Microsoft Azure Local and Azure Resource Manager due to improper authentication. The brief post references a link but offers no PoC, exploit code, active exploitation evidence, or patch details.
01010118
974 followersView on X
Upwind Security MDR@UpwindMDR145d
Patch
🚨 Critical- Azure Local Disconnected Operations Elevation of Privilege (CVE-2026-42822) A critical Elevation of Privilege (EoP) vulnerability exists in Azure Local Disconnected Operations (ALDO), Microsoft’s hybrid solution for running cloud services in fully disconnected infrastructure. While environments managed directly by Microsoft-operated Azure Resource Manager are fully mitigated, local or air-gapped ALDO control planes remain highly vulnerable to local privilege escalation and infrastructure compromise. 👉 Affected: Azure Local Disconnected Operations (ALDO) deployments < 2604 | Upgrade to ALDO version 2604 or later via full system update
Post summary
Microsoft identified a critical elevation‑of‑privilege vulnerability in Azure Local Disconnected Operations and urges customers to upgrade to version 2604 or later.
00010106
196 followersView on X
kawn@kawn2020143d
Disclosure
#securityupdate #microsoft #定例外 CVE-2026-42822 影響: 特権の昇格最大深刻度: 緊急 CVSS:3.1 10.0 / 8.7 悪用可能性・一般に公開: No ・悪用: No ・Exploitability assessment: 悪用される可能性が高い https://x.com/kawn2020/status/2057400966736146434
Post summary
The tweet announces a Microsoft CVE (CVE‑2026‑42822) for privilege escalation with emergency severity, a CVSS of 10.0/8.7, and high exploitability, but no public exploits, patches, or PoC are referenced.
0000048
85 followersView on X
RedLegg@RedLegg144d
Patch
Security Bulletin: Azure Local Disconnected Operations Elevation of Privilege Vulnerability CVE-2026-42822 is critical (CVSS 10.0) - Remediation requires upgrading ALDO systems to version 2604 or later via a full system update. #ThreatIntel ... https://hubs.li/Q04h9sW40
Post summary
The advisory announces CVE-2026-42822 as a critical elevation-of-privilege flaw with a CVSS score of 10.0, recommending a system update to version 2604 or later as the patch.
0000075
2.2K followersView on X
ADK Cyber@ADKCyber144d
Patch
CVE-2026-42822 scores CVSS 10.0 due to improper authentication in Azure Local Disconnected Operations, allowing network-based privilege elevation. If your environment uses this feature, review the vendor advisory and confirm patching or compensating controls. http://adkcyber.com via NVD Recent High CVSS #CyberSecurity #InfoSec #Vulnerability
Post summary
CVE-2026-42822 is a high severity privilege‑elevation flaw in Azure Local Disconnected Operations; the text emphasizes reviewing vendor advisories and applying patches or compensating controls.
0000049
80 followersView on X
Israel@f1tym1145d
Disclosure
CVE-2026-42822 | Microsoft Azure Local/Azure Resource Manager improper authentication (EUVD-2026-30787) https://ift.tt/uO6pJHw A vulnerability categorized as critical has been discovered in Microsoft Azure Local and Azure Resource Manager. This affects an unknown part. Executi…
Post summary
A new critical Azure Local/Azure Resource Manager authentication vulnerability (CVE-2026-42822) has been disclosed, but the post offers limited technical detail and no evidence of active exploitation or available patch.
0000058
974 followersView on X
VulDB 🛡@vuldb145d
Active Exploitation
Some increased actor activities are shown targeting Microsoft Azure Local and Azure Resource Manager (CVE-2026-42822) https://vuldb.com/vuln/364499/cti
Post summary
The post notes that multiple actors have increased activity targeting CVE‑2026‑42822, implying potential active exploitation, but it lacks specific PoC, exploit code, or mitigation details.
0000083
2.2K followersView on X
Vulmon Vulnerability Feed@VulmonFeeds145d
Disclosure
CVE-2026-42822 Privilege Escalation via Improper Authentication in Azure Local Disconnected Operations https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-42822
Post summary
The post announces CVE‑2026‑42822 as a new privilege‑escalation vulnerability affecting Azure Local Disconnected Operations; no PoC, exploit, or patch is provided.
0000072
4.0K followersView on X
WindowsForum@windowsforum145d
Patch
🚨 Microsoft: “Azure is safe, just not the disconnected Azure.” CVE-2026-42822 proves the edge is where the patch party happens. If you’re offline, you’re still vulnerable. #Windows #Security https://windowsforum.com/threads/cve-2026-42822-aldo-fix-update-to-aldo-2604-or-later-for-disconnected-azure.418796/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #SecurityUpdate #Cve202642822 #AzureLocalDisconnectedOperations https://t.co/XHZoBws2SP
Post summary
The post notes a CVE affecting Azure’s disconnected environments and recommends upgrading to aldo-2604 or later, indicating that a patch is available.
0000090
1.1K followersView on X

CPE platform detail2 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

2 of 2 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	microsoft	azure_local	-	-	-
App	microsoft	azure_resource_manager	-	-	-

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What researchers are saying

CVE-2026-42822

moto_sato[verified]@58_158_177_102Disclosure

Microsoft announced a critical elevation‑of‑privilege vulnerability (CVE‑2026‑42822) in Azure Local Disconnected Operations, noting high CVSS scores and likelihood of exploitation, but it does not provide PoC, exploit code, or a patch.

Orizon[verified]@OrizonCyberPatch

A critical Azure Local Disconnected Operations auth flaw (CVE‑2026‑42822) with a CVSS score of 10/10 is disclosed; a patch has already been issued and is recommended to be applied.

Israel[verified]@f1tym1Disclosure

CVE‑2026‑42822 is a newly discovered critical vulnerability in Microsoft Azure Local and Azure Resource Manager due to improper authentication. The brief post references a link but offers no PoC, exploit code, active exploitation evidence, or patch details.

Upwind Security MDR[verified]@UpwindMDRPatch

Microsoft identified a critical elevation‑of‑privilege vulnerability in Azure Local Disconnected Operations and urges customers to upgrade to version 2604 or later.

ADK Cyber[verified]@ADKCyberPatch

CVE-2026-42822 is a high severity privilege‑elevation flaw in Azure Local Disconnected Operations; the text emphasizes reviewing vendor advisories and applying patches or compensating controls.

Israel[verified]@f1tym1Disclosure

A new critical Azure Local/Azure Resource Manager authentication vulnerability (CVE-2026-42822) has been disclosed, but the post offers limited technical detail and no evidence of active exploitation or available patch.

WindowsForum[verified]@windowsforumPatch

The post notes a CVE affecting Azure’s disconnected environments and recommends upgrading to aldo-2604 or later, indicating that a patch is available.

kawn@kawn2020Disclosure

The post announces the discovery of a new privilege escalation vulnerability (CVE-2026-42822) affecting Azure Local disconnected operation services, with reference to Microsoft's advisory.